Device for releasing reproducers from records of talking-machines.



PATBNTED JAN. s, 1905.

F. & W. LOCHMANN. DEVICE POR RELEASING REPRODUGERS FROM RECORDS 0F TALKING MACHINES. APPLIGATION FILED APB. 27, 1904.

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muws umu. ma, un. uw ww No. 778,871. PATENTED JAN. 3, 1905. E. & W. LCCHMANN. DEVICE POR RELEASING REPRODUCERS FROM RECORDS OP TALKING MACHINES.

APPLIOATION FILED AER. 27, 1904.

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UNITED STATES atented January 3, 1905.

PATENT OEEICE.

FRITZ LOOHMANN AND WILLIAM LOOHMANN, OF fZEULENRODA II, GER- MANY, ASSIGNORS TO THE FIRM ORIGINAL MUSIKWERKE PAUL LOGH- MANN GESELLSCHAFT MIT BESCHRNKTER I-IAFTUNG, OF LEIPSIO,

GERMANY.

DEVICE FOR RELEASING REPRODUCERS FROM RECORDS OF TALKING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 778,871, dated January 3, 1905,.

Application tiled April 27, 1904. Serial No. 206,042.

To all wtmn t Incty concern:

Be it known that we, FRITZ LOCIIMANN and WILLIAM LoCI-IMANN, subjects of the King of Saxony, residing at Zeulenroda II, Reuss, Ger- 5 many, have invented new and useful Improvements in Devices for Releasing Reproducers from Records of Talking-Machines, of which the following is a specification.

At the close of a play, talk, or the like the Io reproducer or horn should be released or lifted off the record. Foraccomplishing this-re sult promptly at the close of the play, even when of short duration, it has been the practice to abruptly deflect the spiral line along' I 5 which are the undulations with a sharp rise toward the center. By this movement the release or clearing device for the reproducer or horn is brought into operation. This arrangement, however, has a disadvantage that the zo point of the reproducer does not respond to the sudden deiiection and runs or jumps out of the shallow depression of the spiral groove. To avoid this objection, it is proposed according to this invention to apply an adjustable rod above the record to serve as a guide for the point of the reproducer and abruptly divert the same at the end of the play toward the center of the record, so as to bring the release for the reproducer or horn into action.

This invention is illustrated in the accompanying drawings, in which- Figure l is a plan view of the record of a talking-machine with this arrangement. Fig. 2 is a side elevation of Fig. 1. Fig.v 3 is a plan view of a mod-itication. Fig. A shows a moditcation in which the guide-linger is shown as a spring-arm contacting with the plate or disk. Fig. 5 is a side elevation of Fig. 4. Fig. 6 shows a moditied form of the carrier `For the guide-finger. Fig. 7 is a side elevation of Fig. 6.

The record A is provided, as known, with the spirally-arranged undulations or soundmarks. Above the axis of rotation B of the plate a disk O is to be placed which carries the adjustable rod or linger D, which serves to guide the point to direct the reproducer of the talking-machine at the close of the piece toward the center oi' the driving-axle. If, for example, the point of the reproducer has finished the piece at E, the guide D is adjusted to this position and on continued rotation of record A the point of the gramophone glides along the guide toward the center of the record, and thereby moves the releasing mechanism into action, as well known. The Inanner in which the guide D, forming the mechanical arrangement for releasing the reproducer, is arranged is immaterial so far as the present invention is concerned.` The essence of the arrangement is that an adjustable rod or feeler is applied projected over the record. The rod must be adjustable, so that it can be set in accordance with the size ot' the piece being played or reproduced. To 6 5- what extent it is projected over the record is immaterial.

In the example shown in Fig. l the rod D is applied to a plate O, slipped over the driving axle B of record A or which can be 70 screwed to such axle. This rod D is composed of a wire which can be straight or bent or be given a certain bend and brace by the application of a stud F. The rod D is fastened at one end to the button G, so that by turning the button the rod can be extended more or less over the plate O.

The plate O is ot' such size that the release mechanism of the reproducer comes into ac-A tion as soon as the plate O is reached. The 8O plate has an inclined edge H, so that the point of the reproducer can run up onto the plate even when the release device for the reproducer should not operate at once.

Fig. 3 shows another construction of rod 85 and which is indicated by the reference character D. It is in this case made straight and by sliding is set more or less over the surface ot' plate C. The rod D could, however, also be given any other desired form than that as shown. It can be applied directly to the button G in any manner above the record Al without requiring the plate C. In view of the sensitiveness of the reproducer it is ador rim of the plate C2.

' button, by means of an. arm or, as shown in the drawings, by means of rotary disk I2, secured to the button, engages an arm K2 of the finger D2. In the example shown the connection between rotary disk 12 and arm K2 is effected vby pin L2 of ak pin-and-slotconnection. By turning the button G2 disk I2 is rotated and the arm K2 on the finger D2 is actuated, so that said linger will swing from or contact with the circumference of the disk C2.

In the form of construction shown in Figs. 6 and 7 in place of the ring-shaped disk a carrier C2 is employed, carrying the linger D3 or formed directly into such finger. As the carrier or body C3 is not secured to shaft B2, it must be so heavy that its own weight will secure it against displacement. To bring the finger D3 into position, the latter in this case is not moved on the carrier, but the entire carrier or body C2 is movably arranged on the plate A3. The carrier G3 is retained on the record-disk by its own weight.

What we claim as our invention, and desire to secure by Letters Patent, is-

l. A mechanism for freeing the reproducer from the record of a talking-machine, comprising an adjustable rod above the record set to correspond with the end of the piece or undulation to guide the point of the reproducer for directing the reproducer to the center of the record for enabling the release to come into operation. A

' 2. A mechanism for freeing the reproducer from the record of a talking-machine comprising a rod, a plate to which the rod is connected, and a driving-axle onto which said plate is secured or slipped.

3. A mechanism for freeing the reproducer from the record of a talking-machi-ne cornprising a spring-rod, a driving-axle, and a plate secured or connected to the aXle and to which plate the rod is secured.

4. A mechanism for freeing the reproducer from the record of a talking-machine comprising a spring-rod, a driving-axle, and a plate secured or connected to the axle and to which plate the rod is secured, said'plate having a stud for enablingthe rod to be braced and held at a desired bend or curvature;

In testimony whereof we have hereunto set our hands in the presence of two subscribing witnesses.

FRITZ LOCHMANN. WILLIAM LOCHMANN.

Witnesses:

HANS NEUER, GUsTAv MLLER. 

